Watch case



FIG. 1 is a front side perspective view of a watch case showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is an end view thereof;

FIG. 4 is left side view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof. 

The ornamental design for watch case, as shown and described. 